Automatic glue feeder and spreader for box-machines.



E. ROTHONG.

AUTOMATIC GLUE FEEDER AND SPREADER FOR BOX MACHINES.

APPLICATION TILED OGT.22. 1907.

Patented Sept. 29, 1908.

3 SHEETS-SHEET 1.

E. ROTHONG. AUTOMATIC GLUE FEEDER AND SPREADER FOR BOX MACHINES.

APPLICATION FILED OCT. 22. 1907.

Patented Sept. 29, 1908.

3 SHEETSSHEET 2.

lA-llfr Patented Sept. 29, 1908.

3 SHEET8SHEET 3.

\ 1;. ROTHONG.

AUTOMATIC GLUE FEEDER AND SPREADER FOR BOX MACHINES. APPLICATION FILED OUT. 22, 1907.

N W w//////////uw $0? WMIM/ UNITED- STATES PATENT OFFICE.

EUGENE ROTHONG, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO JORDAN MACHINE COMPANY, OF PHILADELPHIA, PENNSYLVANIA.

. AUTOMATIC GLUE FEEDER AND SPREADER FOR BOX-MACHINES.

' Specification of Letters Patent.

. Patented Sept. 29, 1908.

Application filed October 22, 1907. Serial No. 898,678.

new and useful Automatic Glue Feeders and Spreaders for Box-Machines, of which the following is a specification.

My invention relates to machines for as sembling and uniting the boards constituting the sides of packing or other boxes and the object of the invention is to provide an effective, automatic glue feeder and spreader to apply to the joints of the boards theright quantity and consistency of glue.

Attempts have been made to supply glue to the tenoned 'oints of a box by rotary brushes, while t e boards constituting the sides of a box were fed towards the center of the box-machine, but as such brushes spread the glue only on top of the tenons without bringing anyglue between them, such gluefeed never came into practical use. common the boar s for boxes and dip the ends of the bundled boards into the glue, and this has the disadvantages, that the glue will be cold before the joints of a box are completed and further the boards will stick to each other due to the glue entering between the faces of the boards, this latter disadvantage is the more serious as theboards sticking together cannot be readily moved into the hopper by the 'board'feeding mechanism and in consequence the box machine has to be stopped frequently to separate the boards. Wit my new glue feeder these disadvantages are en-' tirely obviated, and the glue is applied to the joints of the'board as each board is fed to the edge of the hopper.

The glue-feeder and spreader will work effectively on any thickness of board and is provided with means to have'the glue fed while warm and of the right consistency and with means to prevent any clogging-up of the feeding device proper. v

My invention consists of a glue receptacle supported .on the box machine frame at each corner and above the hop er in which the sides of a box are assembled? It further consists of devices 0 erated by ,boxes and also showin Theractice is and has been to bundle.

valves and to apply. the glue to the joints at the right time, it also consists of means in connection with this feeding of the glue to spread the latter into the joints of the sides, and it-further consists of im rovements hereinafter more fully describe and pointed out in the claims. I

- My invention will be more fully understood taken in connection with the accompanying drawings forming part hereof and in which Figure 1, is a p am view of a box machine, showing the hopper, in which the sides of the box are assembled, and the feed mechanism for feeding the sides into the hopper, and four of my glue-feeding and spreading devicesin application, these devices are connected by flexible steam pipe to keep the glue in a heated condition and the outlets ofthe glue clean. Fig. 2, is a side view of one of my glue-feeding and spreadin devices, showing the boards or sides, which are to form the the device with superposed glue receptac e, which is heated by steam; Fig. .3, 1s a side view, showing the glue-feeding and s eading device, in connection with .a He of boards ready to be joined, the means or transferring the lowermost board to the hopper and the means for operating the valves by the under-side of the lower-most board. Fig. 4, is an end view of the mechanism and devices shown on Fig. 3. Fig. 5, is, a top view partly in section of the mechanism shown in Fig. 3. Fig. 6, is a top view of the mechanism for operating the valves for the glue-feeding and spreadin device. Fig. 7, 1s a sectional view in detai of the glue-feeder and spreader, and Fig.8 is an end view thereof.

I Referring now to the drawings for a further description of my invention, a is part of the frame of a box-machine such for instance as is shown in U. S. Patent No. 771,825,

dated October 11', 1904; a are brackets seable slide a, is provided on the face of each projection a. to allow only one board at a time to be fed into the hopper by means of carrier chains a and wheels a driven from any suitable source (Figs. 1 3, 4 and 5).

The box-machine is adapted to make boxes of different sizes and the glue-feeding and s reading devices G- move with the adjustable sections to which they are attached and since the invention is for the glue-feeding and spreading device only, it is deemed unnecessary to describe the working and mechanism of the box-machine. As before stated, the boards I) previously provided with joints are laced in four stacks on the tables a, and so ong as the box-machine is out of action, the glue feeders G will not issue any glue to the joints of a board, in other words the glue feeder and spreader automatically start operating when boards are fed from the four piles towards the hopper and stop operating as soon as the feeding of boards ceases. To obtain these results the valve operating devices of the glue-feeder and spreader must be actuated from the lower-most face of the advancing board, since the thickness .of the boards constituting'the box vary with the The glue-feeder and spreader G, comprises the glue rece tacle g fastened to the brackets a (Fig. 2), the conducting pipe g, the regulater 1; and the valve operating devices 9 The glue receptacle g is provided on its bottom with a steam jacket 9 and the four receptacles of a machine Fig. 1 are connected in'series by flexible tubing t so that the machine can be adjusted to different sizes of boxes, the steam circulating in the jacket g will keep the glue in the receptacle in condition to be fed through the conducting pipe g, which is also provided with a steam jacket g; the two jackets g and g bein in communication through an orifice g, the ower end of the conducting pipe g is provided with a stop valve A short distance above the table a and fastened to the bracket a is arranged the regulator '9, consisting of the cylinder 0, with plunger c and ipe neck 0 the latter communicating witfi the conducting pipe and the cylinder 0 (Figs. -2 and 7). The p unger c is operated as hereinafter described to prevent or stop the flow of glue from the receptacle 9, through conducting pipe 9, neck 0 and orifices 0 onto the joints of the underlying board I). The plunger 0 is provided with pins 0 registering with and entering into the orifices 0, so that by working the plungeru and down the orifices may be cleaned.

In ine with the orifices c and communicating with a steam supply ipe d are steam-jets d, to force and spread t e glue issuing from the orifices onto and into the joints of the board as it passes from its ile towards the ho per. A shield c is attacfied to the lower on of the cylinder 0 to direct the glue and steam.

To actuate the plunger 0 in order to allow glue to issue through the orifices c, a shaft bearing 6 is secured to the frame a (Fig. 4) and a lever e and e is attached to each end of the shaft e The forward end of the lever e is provided with a roller 6, which normally projects above the table a, but when aboard is fed from under the pile of boards towards the hopper the forward ends of the levers c and e are depressed and cause the downward move of the connecting bar a Integral with or fastened to the pi e-neck c is a bearing a" in which a rock-sha t e is j ournaled, an arm e in line with the plunger 0 and an arm 0 engaging the connecting bar a are rigidly hehl onto the rockshaft e; the free end of the arm 6 is pivoted to the plunger 0 by a link e so that whenever a board 6 travels over the roller e the plunger 0 is lifted to allow the flow of glue through the orifices 0. At the same time the lunger c is lifted steam is permitted throug the jets d to force and spread the glue onto the joints of the underlying board 6, and to accomplish this a pis ton p is arranged to work in a fitting 1) of the steampipe d. This piston is connected to an extension of the arm e by means of a link f, so that the plunger and iston p work in unison; the piston p is held in depressed po-' sition by the spring 3 bearing against a ug on the cylinder 0, an a collar on the piston 1), while the weight of the various levers, arms and bar (2 is counterbalanced by the spring 1).

To guide the board in entirely horizontal position until the far edge thereof is past the glue-feeder before it tilts and is deposited in the ho per, two guide rollers r and r are journa ed in a bracket 1', this bracket is secured to a rod 1' with collar 1" and is held in the guides 1"". The upper end of the rod is threaded and has a nut r for adjustment and a jam-nut r to secure the adjustment.

The guides r" are secured to the adjustable slides a and move with the same for the purpose of suiting various thicknesses of boards as before stated. A spring 1 is inter osed between the upper guide 1 and the collar r to kee the large roller 1' in contact with the board The connecting bar 6 notched to engage the free extremity of the arm '0, and a spring 6 is employed to normally kee the arm e in engagement with said notch, but if it is desired to clean the orifices c of glue or other matter which may have settled therein or if for any reason the plunger 0 or piston or both of them must be removed from their cylinder 0 and fitting p, the bar e is disengaged from the arm a", and by removing the rock-shaft e the plunger and piston may be Ordinarily it will be 'found sufiicient to work the extension 1: up and down to clean the orifices because in doing so the steam issuing from the jets (1 will warm the glue while the pins 0- working in theorifices will force out any matter settled therein.

To. regulate the flowof glue through the orifices c to a nicety, a valve 'c'is arranged on the pipe-neck c and to regulate the supply of steam through the jets d, a valve d? is installed in the fitting p so that a requisite amount of steam can be sup lied to effect the best results in spreading t e glue into the joints of the boards b.

To collect an glue which may drop through the jointswhi e the board-is assingundefr the feeder, a tank t is provide as shown in -Fi s. 3 and 4.

. t will be understood by those skilled in the art to which my invention ap ertains that modifications may be made wit out dearting from the spirit of m invention, for instance the number of ori ces and steam jets may be increased or decreased also the direction thereof and further the constructional details. may also be changed to suit conditions; and

Having thus described the nature and objects of my invention, what I claim as new and desire to secure b LettersPatentisz 1. A glue-feeder an spreader, comprising a steam-jacketed glue receptacle, a steam jacketed glue conductor pipe, a stop valve on said pipe, a cylinder joined to said pipe, a plunger operating in said cylinder, an orifice 1n the bottom of the cylinder and a steam-jet at an angle to said 0i'ifice,'substantially as and for the purposes set forth. i

2. A glue-feeder and spreader comprising a glue-supply pipe, a valve therein, a cylinder connnumcating with said pipe, an orifice in said cylinder and a steam-jet communicating with said orifice, substantially as and for the purposes set forth.

3. A glue-feeder and s )reader, comprising a glue-supplg pipe, a cylinder communicating therewit 1, an orifice in said cylinder, a steam-jet joining said orifice, means for automatica ly stopping and startm the flow of regulating the steam-jet in 'conj unction wit the flow of the glue, substantially as and for the purposes set forth.'

4. A glue-feeder and spreader comprising a glue-supply pipe, a cylinder communicating with said pipe, orifices in said cylinder, means for sto' ping and starting the flow of glue throng -said orifices, pins registering with.

said orifices and attached to said means, for the purpose of cleaning the said orifices, a

steam-jet and means for regulating the steamjet in conjunction with the flow of the glue,

substantially as and for the purposes set v forth.

5-. In a box-machine in combination with a board-feed, a glue-feeder and spreader com prising a glueesupply pipe, a cylinder communicating with said pipe an orifice. in said cylinder, means for sto ping and starting the flowfof lue through t e orifice, a steam-jet, means or regulating the steam-jet in conjunction with the flow of glue and devices between the board-feed and the glue-feeder-and spreader for effecting the automatic regulation of the flow of glue and steam-jet, substantially as and for the purposes set forth.

-6. In a. box-machine incombination with a board-feed, a glue-feederand spreader comprising a glue-supply pipe, a cylinder communicating with said pipe, an orifice in said cylinder, means for automatically stop- .ping and starting the flow of the glue through the orifice, a stean1-jet,.means for automatically regulating the steam-jet in con junction with the flow of' the glue, a device 0 )erated by the underside of a board as it is fer by the board-feed for actuating the said meansfor the re ulation of the flow of glue and steamjet,"su stantially as and for the purposes set I forth.-

7. In a box-machine in combination with a board-feed, a glue-feeder and spreader comprising a glue supply-pipe, a c linder attached to and communicating wit said pipe, orifices in said cylinder, a pin for each orifice, a steam-jet for each of the orifices and means to automatically re ulate and control the flow of glue throng the orifices and the steam-jet, by the feeding of aboard, substantially as and for the purposes set forth.

. 8. In a box-machine in combinationwith a hoard-feed, a glue-feeder and spreader comprising a glue supply pipe, ac linder attached to and communicating wit 1 said ipe, orifices in said cylinder, at )lunger in sai1i cylinder, a in for each of tlie orifices, a lever with a ro ler normally projecting in the path of the board to'be fed, and means between said roller, plunger and steam-jet to operate the plungerand control the flow of glue and steam, substantially as and for the purposes set forth.

In witness whereof I have hereunto set my hand in the presence of two subscribing witnesses.

EUGENE 'ROTHONG. Witnesses:

OLIVER S. KEELY, Hermann BOWMANN. 

